When we use a cluster of computer as web server, we need to select a load balancing scheme to distribute the requests across the servers. A lot of load balancing algorithm has been invented and implemented. Dispatcher based algorithms are one kinds of scheme that has been used. After a load balancing algoritm is invented, we need use a test bed to test the performance of the algorithm, to determine if it is better or worse than other algorithm. Our test bed is used to test the performance of dispatcher based load balancing algorithm. It consists of three part, the client, the dispatcher and the server. We will introduces the features of our test bed and how the test bed can be used.